Leases - Schedule of Supplemental Balance Sheet, Cash Flow and Other Information (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets:
Operating lease assets	$ 1,762	$ 2,886
Finance lease assets	6,667	8,202
Total leased assets	8,429	11,088
Current
Operating lease liabilities	348	1,442
Finance lease liabilities	1,363	1,443
Noncurrent
Operating lease liabilities	1,416	1,457
Finance lease liabilities	6,516	7,341
Total lease liabilities	9,643	11,683
Accumulated amortization, finance lease assets	$ 3,300	$ 1,700
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent	us-gaap:AccruedLiabilitiesCurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligations	us-gaap:LongTermDebtAndCapitalLeaseObligations